Fig. 4.

Forest plot of causal effects (A) and MR leave-one-out sensitivity analysis (B) for genus Blautia on colorectal cancer. A The causal effect of genus Blautia on colorectal cancer was estimated using each SNP singly using the Wald ratio, and using all SNPs using the MR Egger and IVW methods. B Leave-one-out sensitivity analysis represents the MR analysis excluding the particular SNP using the IVW test